Gastrointestinal discomfort after eating leftovers may be caused by indigestion, gastrointestinal inflammation, gastrointestinal dysfunction, etc. It can be treated with gastric stimulants such as domperidone, anti-infectives such as cefixime, acid inhibitors such as omeprazole, antispasmodics such as pivoxyl, and probiotics such as Bifidobacterium lactis triplex. 1. Gastric stimulants: such as mosapride, domperidone, etc., which can promote gastrointestinal peristalsis and accelerate the digestion of food. 2. Anti-infective drugs: such as cephalosporins like cefixime and quinolone antibiotics like levofloxacin, which can effectively control the infection. 3. Acid inhibitors: Hâ‚‚ receptor inhibitors such as ranitidine and proton pump inhibitors such as omeprazole can inhibit gastric acid infections and treat underlying diseases such as gastritis and gastric ulcers, thus promoting gastrointestinal digestion. 4. Antispasmodics: anticholinergic drugs such as scopolamine and atropine, calcium antagonists such as pivacurium bromide and nifedipine can relieve pain caused by gastrointestinal spasm. 5. Probiotics: such as Bacillus subtilis diabolicus, Bifidobacterium lactis triabolicus, etc., to regulate the balance of intestinal flora and improve intestinal digestion. After eating the leftovers of the gastrointestinal discomfort can also be hot compresses or massage of the stomach to relieve the symptoms. All the above medicines should be taken under the guidance of a doctor and should not be used without authorization.